Originally posted by steven344 Here is a photo of another project in progress,It will be a 4 channel gainclone bridged-parallel circuit with 4 Ics per channel

2 channels for front speakers and 1 for sub and 1 for surround or another sub

How long,do you think it will before it is finished? I would love to know, if the fan will cool 16 chips. I have two 8 chip monos with all aluminum case and heatsinks. the things reach 102 degree with 20volt into 10 ohms.

Originally posted by I_Forgot You call that big? Why that's just a little wimpy thang! Here's mine, all 18lbs 13.8 oz, 18.5"x7.5"x4.75" of it, one LM3886 on each side. I can't decide if I should use two fans or just one...

From my experience, you will need 2 heatsinks that size and 2 fans per heatsink, at least. We're talking about LM3886s not whimpy LM1875s here.

Originally posted by I_Forgot Maybe you're right...
Shall I mount both chips on one side of one heatsink, then sandwich them between the two, or shall just put 1 chip on each heatsink?

Mate, these need to setup as complete monblocs and have them in separate rooms. Having that much heatsink material in one room could lower the room temperature by as much as 50 degrees and that could be hazardous to one'e health.